Updated 2017-01-03 21:10:46 UTC

M 4.9 — 144 km ESE of ?hara, Japan

Magnitude 4.9, depth 10.0 km, 2016-10-05 21:26:33 UTC.

MagnitudeM 4.9
Depth10.0 km
Felt reports—
Statusreviewed
TsunamiNo
Quake Pulse Activity Index

Activity trend

A high index means recent activity is high relative to the selected historical baseline. It does not mean that a larger earthquake is about to occur.

Quake Pulse Activity Index51/100Normal
Current 30 days42
Historical monthly median41.5
Historical percentileP51
M5+ in 30 days9
M6+ in 30 days1
Activity trendaround the historical range (+1%)
Baseline months: 60Last calculation: 2026-09-03 06:17:39How the index works →
Quake Pulse

What to know

A short factual reading of this event from the available observations.

  • Magnitude M 4.9 at 10.0 km depth.
Counts describe detected earthquakes and are not a forecast or hazard assessment.
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Within the Quake Pulse database

Long-term comparisons are more robust at higher magnitudes because small-earthquake detection capability has changed over time.

Magnitude rank in database#48,165
Magnitude rank in country#3,635
M4.5+ within 250 km, ±15 days44
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Impact and context

Descriptive indicators available for this event and its surroundings.

13/100Limited context
Felt reports—
Max felt intensity (CDI)—
Instrumental intensity (MMI)—
PAGER alertNot available
Tsunami indicator—
USGS significance369
Depth contextShallow
Nearby major cityTokyo224 km · 14,000,000

Nearby major city

Displayed population is the indexed city population, not an estimate of people exposed.

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Around this epicenter

Nearby events observed around this epicenter. Spatial proximity does not necessarily mean they belong to the same sequence.

M 4.9 · 144 km ESE of ?hara, Japan · 100 kmInteractive 3D view of earthquakes within 100 km of M 4.9 · 144 km ESE of ?hara, Japan.M 4.9 · 144 km ESE of ?hara, JapanM 4.6 · off the east coast of Honshu, Japan · 39.7 kmM 4.5 · 150 km ESE of ?hara, Japan · 12.5 kmM 4.7 · 119 km ESE of Katsuura, Japan · 35.5 kmM 5.2 · 111 km ESE of ?hara, Japan · 35.2 kmM 4.6 · 160 km SE of Hasaki, Japan · 24.7 kmM 4.6 · 134 km ESE of ?hara, Japan · 13.8 kmM 4.9 · 131 km ESE of ?hara, Japan · 13.2 kmM 4.5 · 156 km ESE of Katsuura, Japan · 32.7 kmM 5.1 · 151 km ESE of ?hara, Japan · 19.7 kmM 4.6 · 139 km ESE of ?hara, Japan · 12.9 kmM 4.5 · 141 km ESE of ?hara, Japan · 18.1 kmM 4.5 · 152 km ESE of ?hara, Japan · 22.1 kmM 4.5 · 151 km ESE of ?hara, Japan · 22.8 kmM 4.6 · 151 km ESE of ?hara, Japan · 14.4 kmM 4.9 · 133 km ESE of Katsuura, Japan · 28.8 kmM 4.9 · 154 km ESE of ?hara, Japan · 23.1 kmM 4.6 · 148 km ESE of ?hara, Japan · 17.6 kmM 4.7 · 154 km SE of ?hara, Japan · 26.6 kmM 4.9 · 149 km ESE of ?hara, Japan · 16.6 kmM 4.6 · 136 km SE of Katsuura, Japan · 39.7 kmM 5.0 · 103 km SE of Katsuura, Japan · 55.6 kmM 4.7 · 156 km ESE of ?hara, Japan · 16.0 kmM 4.7 · 142 km SE of ?hara, Japan · 23.0 kmM 5.3 · 104 km ESE of ?hara, Japan · 40.6 kmM 5.2 · 151 km ESE of ?hara, Japan · 19.8 kmM 4.6 · 160 km ESE of ?hara, Japan · 25.8 kmM 4.5 · 195 km SE of Hasaki, Japan · 52.2 kmM 4.5 · 139 km ESE of ?hara, Japan · 10.8 kmM 4.6 · 224 km ESE of ?hara, Japan · 81.6 kmM 4.9 · 149 km SE of ?hara, Japan · 22.8 kmM 4.7 · 145 km ESE of Katsuura, Japan · 33.2 kmM 4.8 · 146 km ESE of Katsuura, Japan · 26.9 kmM 4.9 · 143 km ESE of Katsuura, Japan · 27.5 kmM 6.2 · 142 km ESE of Katsuura, Japan · 31.5 kmM 4.5 · 152 km ESE of Katsuura, Japan · 29.3 kmM 4.7 · 147 km SE of ?hara, Japan · 25.7 kmM 5.0 · 157 km ESE of Katsuura, Japan · 29.9 kmM 5.3 · 157 km ESE of Katsuura, Japan · 36.9 kmM 5.3 · 157 km ESE of ?hara, Japan · 25.1 kmM 4.7 · 159 km ESE of Katsuura, Japan · 32.2 kmM 4.5 · 173 km ESE of ?hara, Japan · 35.5 kmM 4.6 · 131 km ESE of Katsuura, Japan · 32.9 kmM 4.6 · 150 km ESE of Katsuura, Japan · 28.3 kmM 4.5 · 140 km ESE of Katsuura, Japan · 29.9 kmM 4.6 · 144 km SE of Katsuura, Japan · 38.6 kmM 4.6 · 142 km ESE of Katsuura, Japan · 31.2 kmM 4.5 · 179 km SE of Hasaki, Japan · 35.5 kmM 4.6 · 149 km SE of ?hara, Japan · 23.7 km
M 4.9 · 144 km ESE of ?hara, Japan100 km48 Recent earthquakes

Descriptive map centered on the epicenter; it does not represent felt intensity or risk.

Sequence context

No public sequence is currently associated with this event.

Nearby events · 100 km

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USGS data evolution

Earthquake parameters can be revised after first publication. This timeline shows versions retained by Quake Pulse.

Revisions1
Magnitude change+0.0M 4.9 → M 4.9
Depth change+0.0 km
Last update5136299 min
2017-01-03 21:10:46 UTC2017-01-03 21:10:46 UTC

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Putting this earthquake in context

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Interpret the numbers

Magnitude, depth, felt reports and status describe different parts of the event. None of them alone predicts the consequences for a specific city.

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